Network cable yog qhov nruab nrab ntawm kev sib txuas ntawm kev sib txuas ntawm thaj tsam hauv zos thiab thaj tsam network. Nyob rau hauv peb lub neej, peb cov kab ua haujlwm hauv zej zos yog: khub sib tw, coaxial cable, thiab fiber ntau qhov muag.
H ow kom paub qhov txawv ntawm lub network cable?
1. Txiav txheej txheej txheej thawv ua ntej, tshem lub rwb thaiv tsev, thiab hlais tus neeg xyuas pib rau ib qho me me kom pom tias qhov xim tooj liab hauv seem ntu yog tsis hnav. Yog hais tias nws yog ntshiab tooj liab, nws yuav yog xim ntsuab xim; tab sis yog hais tias nws yog tov nrog hlau los yog txhuas, los yog lwm cov kev sib tov, tuaj yeem pom pom pob ntse los yog dub.
2. Tus nplais ntawm tus neeg xyuas tooj liab uas yog burnt nrog lub hnub yuav tshwm dub thiab sab hauv xim tseem tsis hloov. Tom qab lub qhov dub tau muab tshem tawm, tus tooj tseem tseem khaws cov xim qub; tab sis yog hais tias nws muaj iron, tsis muaj teeb meem li cas koj txhawm nws Lawv tag nrho dim dub.
3, sab hauv txheej ntawm rwb thaiv tsev, muaj peev xwm raug rub tawm ntawm ib seem, thiab ces tawm ntawm ob sab ntawm tes, ntev qhov ncab, qhov zoo dua cov khoom; xim nws tus kheej yog qhov kaj, qhov saum npoo yog tus.
4, xim tsho xim txawv, sib txawv ntawm tus neeg thov kev pab, qhov pib yog tsaus grey los yog lub teeb txho. Qhov nplaim ntawm lub tais yog qhov sib npaug thiab xim nruj, thiab qhov cross section yog grey thiab dawb thiab muaj tsis muaj impurities. Lub cev yog torn tsis muaj xaim, thiab lub xaim ncaj ncaj thiab teared los pab txhawb txiav; cov kab rov tav tearing yog ib qho nyuaj los tiv thaiv, thiab ob lub tearing yog txawv. Yam khoom qub.
Qhov sib txawv ntawm cov kab txuas network thiab xov tooj
Ua ntej, lub luag haujlwm yog qhov txawv
1. Tus xov tooj yog hloov los ntawm ADSL, thiab cov teeb meem digital ntawm lub computer yog hloov mus rau hauv ib qho xov tooj analog kom xa los ntawm kev hu xov tooj. Tom qab cov lus xaus tom qab sab nrauv, lub tshuab hluav taws xob analog yog demodulated rau hauv cov teeb liab. Lub network cable yog tsawg dua qhov kev ua haujlwm thiab kev tsim kho ruam.
2. Cov teeb meem muaj teeb meem bandwidth. Tus xov tooj yog cuam tshuam los ntawm lub cev bandwidth. Feem ntau, qhov bandwidth tsis siab dhau heev (qhov siab tshaj plaws hauv broadband tus nqi yog 8M), thiab lub cev bandwidth ntawm lub network cable kuj zoo kawg nkaus (lub xov tooj zoo network txuas tau 1000M los yog tshaj saud).
Thib ob, lub interface txawv
Vim li cas siv miv kom txuas mus rau tus xov tooj interface, thiab network cable interface tsis teb rau qhov kev txuas, qhov no yog vim hais tias lub teeb liab ntawm tus xov tooj, tom qab miv hloov dua siab tshiab thiab kev xa mus yuav xa mus rau lub network ntaus ntawv, xws li kev xa mus rau lub tshuab computer, router, Hubs thiab keyboards, thiab lwm yam. Yog hais tias nws yog ncaj qha kev cob cog, nws yog ib qho uas tsis paub meej ntawm analog, uas tsis yog sib npaug. Hauv lwm lo lus, lub luag haujlwm ua si los ntawm cov miv hauv nruab nrab yog qhov kev hloov pauv thiab kev ua haujlwm yooj yim. Tshwj xeeb tshaj yog, qhov teeb meem ntawm analog ntawm xov tooj yog hloov mus rau hauv lub teeb liab thiab xa mus rau lub network ntaus ntawv, thiab cov teeb liab tshwm sim los ntawm lub network ntaus ntawv yog hloov mus ua ib qho teeb liab analog. Lub xov tooj tau xa tawm.
Puas yog lub network cable thiab xov tooj sib faib?
Txoj kev xaiv lub network cable thiab ib lub xov tooj kab los sib koom ua ke network yog ib qho hauv network systems ntawm cov lag luam me me thiab cov lag luam, tshwj xeeb tshaj yog cov lag luam me me. Qee cov tswj hwm network tau ua rau cov xov tooj cua thiab network tsis xav txog kev txuag nyiaj rau cov kab sib txuas, thiab xaiv hom kev sib txuas ntawm cov kab txuas network thiab xov tooj rau kev daws teeb meem tam sim no. Yuav kom tsis txhob muaj kev tiv thaiv tom qab thiab tswj xyuas thiab txhim kho, nws tsis pom zoo kom muaj lub network rau cov xov tooj thiab lub network.